NONLINEAR PARAMETER-ESTIMATION OF STEADY-STATE INDUCTION MACHINE MODELS

The use of modern identification techniques in determining the values of the steady-state equivalent circuit parameters of a three-phase squ irrel-cage Induction machine is discussed, The identification procedur e Is based on the steady-state phase current versus slip and input pow er versus slip characteristics. The proposed identification algorithm is of a nonlinear kind, The machine parameters are obtained as the sol ution of a minimization of least-squares cost function of the differen ce between calculated and experimental steady-state characteristics, S imulation, as well as experimental results concerning the application of the proposed algorithm to the modeling of a 1.5-kW wound-rotor thre e-phase induction machine, are presented.